Improvement in door-checks



C. S. WHIPPLE.

DOOR CHECK.

No. 189,822. Patented W11 17, 1877.

1 o WZ at i Y K 2 N. FErERs, PHOTO-LITHOGRAPHERI WASHINGTON. d. C.

UNITE T PATENT OFFICE.

HIMSELF AND GEORGE W. GODDARD, OF SAME PLACE.

IMPROVEMENT IN DOOR-CHECKS.

Specification forming part of Letters Patent No. [89,522, dated April17, 1877; application filed February 20, 1877.

To all whom it may concern:

Be it known that I, CHARLES S. WHIPPLE,

of the city and county of New London, of the State of Connecticut, haveinvented a new and useful Improvement in Door or Shutter Fasteners anddo hereby declare the same to be described in the followingspecification and represented in the accompanying drawings,.

celnber 19, 1876, and granted to me, there is described a rotaryT-cat-ch, pivoted to or ap-. plied to a door, and for use with an armfurnished with a slot and mouth, and hinged to a door-casing; the objectof such devices being stated in the specification of such patent. In mypresent improvement the T-catch is not rotary, but is to be so fastenedto the door as to be immovable relatively thereto while in connectionwith it. This T-catch is shown at A, it having at its inner end a neck,a, provided with a head, b. The body part c of the T-catch has holes atat through it for receiving screws for securely fastening it to a door.

Furthermore, the T-catch is provided with the slotted arm-support pieceC, receiving recess 0, arranged in it as shown.

The arm B, to operate with the catch-piece, is furnished with a longslot, j, openiu g out of a cross-slot or mouth, g. The said arm ispivoted or hinged to a support-piece, C, which has a shoulder orback-stop, h, to prevent the slotted arm from being turned inward overthe door-opening, so as to be accidentally struck and bent or injured bythe door while it may be in the act of being shut. In consequence of therecess 0, the T-catch, when the door is closed, receives the laps on thesupport-piece C. On turning the slotted arm into a right angle with theT-catch, the two will be put in engagement, the head of the T-catchpassing through the mouth of the arm.

On the door being opened the slotted arm and the T-catch will determinethe extent of the opening.

I claim- 1. The T-catch A, provided with the recess 0, arranged in it,as and for the purpose set forth.

2. The support-piece C, provided with the back-stop h, in combinationwith the slotted arm B, pivoted to such support-piece, and arranged withthe said back-stop, as shown.

3. The combination of the T-catch A, pro

vided with the recess e, with the slotted arm B and its pivotalsupport-piece C, provided with the back-stop h. for such arm, allarranged, constructed, and operating substantially as described andshown, for the purpose specified.

. CHARLES S. WHIPPLE. Witnesses:

R. H. EDDY, J. R. SNOW.

